1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pentagon [3]
3 years ago
13

To the nearest square metre, calculate the curved surface area of the half pipe if it is 9m long? (With a radius of 2.5m)

Mathematics
1 answer:
Mice21 [21]3 years ago
4 0

Answer:

70.686 m^{2}

Step-by-step explanation:

A=2πrh (area of cylinder without top or bottom)

A = 2\pi(2.5)(9)

A = 141.372

divide by two for half of pipe.

A = 70.686

You might be interested in
Adrianna, Deon, and Yoko jogged at Eisenhower Park today. Adrianna jogs at the park every 3
Dominik [7]

Answer:the answer is 30

Step-by-step explanation hope this helped ☺️

3 0
3 years ago
If there are 400 ounces in 25 pounds, how many ounces are in 8 pounds
ladessa [460]
The answer is:  " 128 oz. " . 
_________________________________________________________
There are:  " 128 oz. " (in " 8 lbs." ) .
_________________________________________________________
Explanation:
________________________________________________________
Set up a proportion;  as a fraction; as follows:
________________________________________________________

 400/ 25  = x / 8 ; 

in which:  "x" = the number of "ounces [oz.] there are in "8 lbs." ;
________________________________________________________
We shall solve for "x" , the answer to the problem:

Cross-factor multiply:

25x = (400) * 8 ; 

→ 25x = 3200 ; 

Divide each side of the equation by "25" ; to isolate "x" on one side of the equation; & to solve for "x" ; 

→ 25x / 25 = 3200 / 25 ; 

→  x = 128 .
_________________________________________________________
Answer:  " 128 oz. " . 
_________________________________________________________
There are:  " 128 oz. " (in " 8 lbs." ) .
_________________________________________________________

Note of interest:  " 16 oz. =  1 lb. " (exact conversion). 

So;  "8 lbs.  <span>=  ?</span>  oz. " ; 

→  " 8 lbs. * (16 oz/ 1 lb)  =   ( 8 * 16) oz.  =  128 oz. ;  →  which is our answer!
_________________________________________________________
3 0
3 years ago
Read 2 more answers
6. I think the answer is H, could you help and check?!
Sliva [168]
Set up an equation to solve.
70% of original price equals $550, the amount Susan is paying.
0.70x = 550
8 0
3 years ago
Read 2 more answers
20 feet. The builder asks him to give the measurements in yards. What will be the length in yards?Immersive Reader
Sedaia [141]

Answer:

6.67 yards

Step-by-step explanation:

20 feet. The builder asks him to give the measurements in yards. What will be the length in yards?

Please note that:

1 foot = 0.333 yard

20 feet = x yards

Cross Multiply

1 foot × x yards = 20 feet × 0.333 yards

x yards = 20 feet × 0.333 yards/1 foot

x yards = 6.66667 yards

Approximately = 6.67 yards

Therefore, the measurements in yards is 6.67 yards.

7 0
3 years ago
What is the rational number equivalent to 3.12​
jekas [21]

Answer:

3 4/33

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Simplify.<br> In e =<br> In e 2x=<br> In 1 =
    8·1 answer
  • 2,8, 32, 128<br> Arithmetic, Geometric, or neither?<br> Explicit: _ Geometric<br> Recursive:
    15·2 answers
  • A circular crop field has an irrigation system in which a pipe, with one end attached to a tower at the center of the field, tur
    10·1 answer
  • Which of the following are characteristics of the correlation coefficient? Check all that apply.
    8·1 answer
  • Factor the polynomial by factoring out the GCF. <br> 20a^2 + 4a
    12·1 answer
  • What is the distance between cemetery in greenhouse
    12·1 answer
  • Consider f(x) = 2x2 + 1 and g(x) = 3x − 6. Which statement about f + g is true?
    10·1 answer
  • A local hamburger shop sold a combined total of 446 hamburgers and cheeseburgers on Monday. There were 54 fewer cheeseburgers so
    12·1 answer
  • Multiple choice geometry help trig ?!!!!!!!!
    12·1 answer
  • PLs help me im stuck.....
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!